00:00
5
6
2
4
6
7
2
9
1
2
7
5
9
8
2
4
9
5
3
5
1
3
7
4
1
3
2
6
1
8
7
5
9
9
5
1
8
6
5
8
3
2025-06-04(Beginner) Puzzles
Step-by-step puzzles for smooth solving
Double-check each number after placing it.
Tips for Solving Sudoku
- Start with squares with fewer numbers: Begin with rows, columns, or blocks that already have more numbers filled; fewer candidates make it easier to solve.
- Pencil marks (notes): For beginners, write possible numbers in small font in empty squares for reference.
- Review: If stuck, check for duplicate numbers or rule violations.
- Basic rule: Do not repeat the same number in the same row, column, or 3x3 block.